HP-UX vPars and Integrity VM V6.3 Administrator Guide

# hpvmmodify -P vm -d lan:dio:[b,d,macaddr]:hwpath:hwpath
◦ Replace a direct I/O function in a vPar or VM guest:
# hpvmmodify -P vpar -m lan:dio:b,d,macAddr:hwpath:new-hwpath
◦ Modify the MAC address:
# hpvmmodify -P vpar -m lan:dio:b,d,new-macAddr:hwpath:hwpath
• The hpvmstatus command allows you to:
View vPar and VM guest configurations. The direct I/O network functions are included
in the #NETs count.
# hpvmstatus
◦
◦ View specific vPar or VM I/O details:
# hpvmstatus -P vm -d
NOTE: There are no new switches specific to direct I/O in the hpvmstatus command
output.
• The hpvmstart command allows you to:
◦ Start a vPar or VM guest with direct I/O:
# hpvmstart -P vm
NOTE: Two vPars or two VM guests cannot start if they are using the same direct I/O
function. Also, two vPars or two VM guests cannot start if they are using the same DLA
device.
• The hpvmstop command allows you to:
◦ Stop a vPar or VM guest that is using direct I/O:
# hpvmstop -P vpar
NOTE: There are no new switches specific to direct I/O for the hpvmstart or
hpvmstop command.
To map direct I/O devices between the VSP and the vPars or VM guests:
• From the VSP:
# hpvmdevinfo -P vm
• From the vPar or VM guest:
# hpvmdevinfo
To restrict DIO-capable devices to the VSP, use the following command:
hpvmdevmgmt -a rdev:hwpath
NOTE: If the hwpath is for a DLA function, all functions will be added.
The hwpath must be assigned to the VSP to restrict for VSP use. If the hwpath is already in use
by a vPar or VM guest, the -a add option fails.
HP recommends that administrators manually restrict all functions that are used by the VSP for VSP
networking, because that is currently not done automatically. HP also recommends that administrators
manually restrict all functions that are assigned to vPars and VM guests for use with AVIO, to avoid
8.5 Direct I/O networking 129